Effects of calcium Ionophore A23187 on the apoptosis of hepatic stellate cells stimulated by transforming growth factor-β1

• Autorzy: Li Y. , Yan Y. , Liu F. , Wang M. , Feng F. , Xiao Y.
• Języki publikacji: EN

Abstrakty

EN

Background: Our previous study showed that during in vitro experiments changes in calcium concentration were associated with apoptosis. We presumed that the calcium ion might play a role as intermediate messenger for apoptosis-related genes. No such evidence has been reported in the literature. Here, we investigate the effect of calcium ionophore A23187 on the apoptosis of rat hepatic stellate cells (HSCs) stimulated by transforming growth factor-β1 (TGF-β1) to explore the mechanism of apoptosis through the endoplasmic reticulum stress pathway. Methods: The apoptotic rate was determined using flow cytometry. The changes in Ca2+ level in HSCs were examined with laser confocal microscopy. The expressions of caspase-12 GRP78 and caspase-9 were assayed via western blot. Results: The respective apoptosis rates for the blank group, the TGF-β1 group and the TGF-β1 + low, medium and high dose calcium ionophore A23187 groups were 3. 40 ± 0.10%, 1.76 ± 0.12%, 5.86 ± 0.31%, 11.20 ± 0.48% and 15.08 ± 0.75%, with significant differences between the groups (p < 0.05). The concentration of Ca2+ and the expression of the GRP78, caspase-9 and caspase-12 proteins significantly increased with increasing calcium ionophore A23187 doses (p < 0.05). Conclusion: Calcium ionophore A23187 increased intracellular Ca2+ and activated endoplasmic reticulum stress, which promoted HSC apoptosis.

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 2018
• Tom: 23
• Opis fizyczny: p.1-9,fig.,ref.

Twórcy

autor

Li Y.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

autor

Yan Y.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

autor

Liu F.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

autor

Wang M.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

autor

Feng F.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

autor

Xiao Y.

• Department of School of Public Health, North China University of Science and Technology, Hebei, Tang Shan 063000, China

Bibliografia

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Identyfikatory

DOI

10.1186/s11658-017-0063-z